The SI units list refers to the modern form of the metric system. Also, the SI unit full form is the International System of Units. Furthermore, it is the only system of measurement that carries an official status in almost all the countries of the world.
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Introduction to SI Units List
The SI Units list comprises a coherent system of units of measurement which begins with the seven base units. Furthermore, the seven base units are second, metre, kilogram, ampere, Kelvin, mole, and candela. The system also allows for derived units, which are an unlimited number of additional units and their representation can take place as products of powers of the base units.
Experts have provided twenty-two derived units with special symbols and names. Furthermore, use of the seven base units and the twenty-two derived units along with their special names and symbols may take place in combination to express other derived units, which are adopted in order to facilitate measurement of diverse quantities. Twenty prefixes are also provided by the SI system to the unit symbols and names when specifying SI unit’s power-of-ten (i.e. decimal) multiples and sub-multiples.
SI Units List
Base SI Units List
Length (l)
SI Unit – Meter
SI Unit Symbol m
Mass (M)
SI Unit – Kilogram
SI Unit Symbol – kg
Time (T)
SI Unit – Second
SI Unit Symbol – s
Electric current (I)
SI Unit – Ampere
SI Unit Symbol – A
Thermodynamic temperature (Θ)
SI Unit – Kelvin
SI Unit Symbol – K
Amount of substance (N)
SI Unit – Mole
SI Unit Symbol – mol
Luminous intensity (J)
SI Unit – Candela
SI Unit Symbol – cd
List of SI Derived Units
Force, Weight
SI Unit – Newton
SI Unit Symbol – N
Furthermore, expressed in SI Base Unit – kg⋅m⋅s-2
Also, expressed in other SI units – –
Frequency
SI Unit – Hertz
SI Unit Symbol – Hz
Furthermore, expressed in SI Base Unit – s-1
Also, expressed in other SI units – –
Electric charge
SI Unit – Coulomb
SI Unit Symbol – C
Furthermore, expressed in SI Base Unit – s⋅A
Also, expressed in other SI units – –
Electric potential (Voltage)
SI Unit – Volt
SI Unit Symbol – V
Furthermore, expressed in SI Base Unit – kg.m2.s-3.A-1
Also, expressed in other SI units – W/A
Inductance
SI Unit – Henry
SI Unit Symbol – H
Furthermore, expressed in SI Base Unit – kg.m2.s-2.A-2
Also, expressed in other SI units – Wb/A
Capacitance
SI Unit – Farad
SI Unit Symbol – F
Furthermore, expressed in SI Base Unit – kg−1.m−2.s4.A2
Also, expressed in other SI units – C/V
Resistance, Impedance, Reactance
SI Unit – Ohm
SI Unit Symbol – Ω
Furthermore, expressed in SI Base Unit – kg.m2.s−3.A−2
Also, expressed in other SI units – V/A
Electrical conductance
SI Unit – Siemens
SI Unit Symbol – S
Furthermore, expressed in SI Base Unit – kg−1.m−2.s3.A2
Also, expressed in other SI units – Ω−1
Magnetic flux
SI Unit – Weber
SI Unit Symbol – Wb
Furthermore, expressed in SI Base Unit – kg.m2.s−2.A−1
Also, expressed in other SI units – V⋅s
Magnetic flux density
SI Unit – Tesla
SI Unit Symbol – T
Furthermore, expressed in SI Base Unit – kg.s−2.A−1
Also, expressed in other SI units – Wb/m2
Energy, Work, Heat
SI Unit – Joule
SI Unit Symbol – J
Furthermore, expressed in SI Base Unit – kg.m2.s−2
Also, expressed in other SI units – N⋅m = Pa⋅m3
Power, Radiant flux
SI Unit – Watt
SI Unit Symbol – W
Furthermore, expressed in SI Base Unit – kg.m2.s−3
Also, expressed in other SI units – J/s
Angle
SI Unit – Radian
SI Unit Symbol – rad
Furthermore, expressed in SI Base Unit – m.m−1
Also, expressed in other SI units – –
Radioactivity
SI Unit – Becquerel
SI Unit Symbol – Bq
Furthermore, Expressed in SI Base Unit – s-1
Also, expressed in other SI units – –
Luminous flux
SI Unit – Lumen
SI Unit Symbol – lm
Furthermore, expressed in SI Base Unit – cd
Also, expressed in other SI units – cd⋅sr
FAQs For SI Units List
Question 1: What is meant by SI base unit?
Answer 1: An SI base unit is one of the building blocks of the SI Units system and all the other units whose derivation takes place from them. Furthermore, there are a total of seven base units.
Question 2: Why is the SI Units system important?
Answer 2: First of all, the basis of the SI system is definite and precise standards. Secondly, the SI units physics use base 10, which makes conversion convenient and easy. Also, the SI units can be derived from one another without the use of conversion factors.